{"schema":"https://pith.science/schemas/pith-integrity/v1.json","pith_number":"2604.28004","arxiv_id":"2604.28004","integrity":{"available":true,"endpoint":"/pith/2604.28004/integrity.json","summary":{"critical":2,"advisory":0,"informational":0,"by_detector":{"doi_compliance":{"total":2,"critical":2,"advisory":0,"informational":0}}},"clean":false,"detectors_run":[{"name":"ai_meta_artifact","version":"1.0.0","status":"completed","ran_at":"2026-05-20T21:33:45.915257Z","findings_count":0},{"name":"doi_compliance","version":"1.0.0","status":"completed","ran_at":"2026-05-19T18:41:43.163011Z","findings_count":2}],"findings":[{"detector":"doi_compliance","finding_type":"unresolvable_identifier","severity":"critical","verdict_class":"cross_source","note":"Identifier '10.22405/2226-8383-2021-22-4-263-286' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","detected_doi":"10.22405/2226-8383-2021-22-4-263-286","detected_arxiv_id":null,"ref_index":13,"audited_at":"2026-05-19T18:41:43.163011Z"},{"detector":"doi_compliance","finding_type":"unresolvable_identifier","severity":"critical","verdict_class":"cross_source","note":"Identifier '10.22405/2226-8383-2023-24-2-81-140' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","detected_doi":"10.22405/2226-8383-2023-24-2-81-140","detected_arxiv_id":null,"ref_index":14,"audited_at":"2026-05-19T18:41:43.163011Z"}],"snapshot_sha256":"f609a2ddfd591d6ebe1df2951f2277ae409759735773a2cf61b6d47822ad6ee9"},"events":[{"event_id":2540,"event_type":"pith.integrity.v1","payload_sha256":"41f6017c6b15bc184d3fa5fa64de58b12f057508ca34a9b58cd810a0eb8a208f","signature_b64":"NO4DI61/9Udj1iE923XBEHMKZEa7EiYlYdGEwIY+JNB1fSoFFyoIt+56afKPfjjXennMjEfwDJYO+j7vRZYOCQ==","signing_key_id":"pith-v1-2026-05","created_at":"2026-05-19T18:42:17.947581+00:00","payload":{"note":"Identifier '10.22405/2226-8383-2023-24-2-81-140' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","snippet":"Galstyan, A.Kh.: Boundary stability in the Fermat–Steiner problem in hyperspaces over finite-dimensional normed spaces. Chebyshevskii sbornik, vol. 24, no. 2, pp. 81– 128 (2023). doi:10.22405/2226-8383-2023-24-2-81-140","arxiv_id":"2604.28004","detector":"doi_compliance","evidence":{"doi":"10.22405/2226-8383-2023-24-2-81-140","arxiv_id":null,"ref_index":14,"raw_excerpt":"Galstyan, A.Kh.: Boundary stability in the Fermat–Steiner problem in hyperspaces over finite-dimensional normed spaces. Chebyshevskii sbornik, vol. 24, no. 2, pp. 81– 128 (2023). doi:10.22405/2226-8383-2023-24-2-81-140","verdict_class":"cross_source","checked_sources":["crossref_by_doi","openalex_by_doi","doi_org_head"]},"severity":"critical","ref_index":14,"audited_at":"2026-05-19T18:41:43.163011Z","event_type":"pith.integrity.v1","detected_doi":"10.22405/2226-8383-2023-24-2-81-140","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"unresolvable_identifier","evidence_hash":"70553907fc4bbdecbe9e5bf457f9359d8a1dbc843f038d197a693f8ae242f68a","paper_version":2,"verdict_class":"cross_source","resolved_title":null,"detector_version":"1.0.0","detected_arxiv_id":null}},{"event_id":2539,"event_type":"pith.integrity.v1","payload_sha256":"f0ef4f7e512f6e026eac56c689cf0d6dda112a56e276417794d48b99d7a0aa44","signature_b64":"Oi6NHGXWDDJA7l803ZJtlAu90PWeZEEM/h3SUnuQQdLDZqy0ycZDWCyeja7fAJuvJhnv0xBk6aE6SXnumhNaBQ==","signing_key_id":"pith-v1-2026-05","created_at":"2026-05-19T18:42:17.946576+00:00","payload":{"note":"Identifier '10.22405/2226-8383-2021-22-4-263-286' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","snippet":"Tropin, A.M.: On the bifurcation of the solution of the Fermat-Steiner problem under 1-parameter variation of the boundary in H(R2). Chebyshevskii sbornik, vol. 22, no. 4, pp. 265–288 (2021). doi:10.22405/2226-8383-2021-22-4-263-286","arxiv_id":"2604.28004","detector":"doi_compliance","evidence":{"doi":"10.22405/2226-8383-2021-22-4-263-286","arxiv_id":null,"ref_index":13,"raw_excerpt":"Tropin, A.M.: On the bifurcation of the solution of the Fermat-Steiner problem under 1-parameter variation of the boundary in H(R2). Chebyshevskii sbornik, vol. 22, no. 4, pp. 265–288 (2021). doi:10.22405/2226-8383-2021-22-4-263-286","verdict_class":"cross_source","checked_sources":["crossref_by_doi","openalex_by_doi","doi_org_head"]},"severity":"critical","ref_index":13,"audited_at":"2026-05-19T18:41:43.163011Z","event_type":"pith.integrity.v1","detected_doi":"10.22405/2226-8383-2021-22-4-263-286","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"unresolvable_identifier","evidence_hash":"d1c44243ed48a68b52f6e04f434a38e7015ddb44f122e716539cb20974580ab8","paper_version":2,"verdict_class":"cross_source","resolved_title":null,"detector_version":"1.0.0","detected_arxiv_id":null}}],"endpoint_self":"/pith/2604.28004/integrity.json","protocol_url":"https://pith.science/pith-integrity-protocol"}